Avoidance system and method for short plate effect of battery pack

A technology for battery packs and short boards, applied in the field of avoidance systems for short board effects of battery packs

Active Publication Date: 2020-10-13
REPOWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiments of the present invention provide a system and method for avoiding the short-board effect of a battery pack, aiming to solve the problem that the sho

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  • Avoidance system and method for short plate effect of battery pack
  • Avoidance system and method for short plate effect of battery pack
  • Avoidance system and method for short plate effect of battery pack

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] figure 1 The first aspect of the embodiment of the present invention provides a schematic diagram of a module structure for a battery pack short board effect avoidance system; for the convenience of description, only the parts related to this embodiment are shown, and the details are as follows:

[0025] A system for avoiding the short board effect of a battery pack, wherein the battery pack 100 includes a plurality of single cells connected in series, and the avoidance system for the short board effect of the battery pack includes a main control module 10. An information collection module ...

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Abstract

The invention relates to an avoidance system and method for a short plate effect of a battery pack. The battery pack comprises a plurality of electrically connected single batteries, and the avoidancesystem comprises a main control module, an information acquisition module, a bidirectional direct current conversion module and a power supply module. The power supply module provides direct currentelectric signals. The information acquisition module acquires parameter information of the single batteries and feeds back the parameter information to the main control module. The main control moduleanalyzes the parameter information and then judges the short board battery, outputs a first control signal when the battery pack is in a charging state and the short board battery is fully charged, and outputs a second control signal when the battery pack is in a discharging state and the short board battery is completely discharged. The bidirectional DC conversion module discharges the short board battery when receiving the first control signal, and charges the short board battery when receiving the second control signal. According to the avoidance system, the bidirectional direct-current conversion module is controlled by the main control module to correspondingly charge and discharge the short-plate battery, so that the charging and discharging of the whole battery pack are not influenced, and the endurance of the battery pack is improved.

Description

technical field [0001] The invention belongs to the technical field of battery management, and in particular relates to a system and method for avoiding the short board effect of a battery pack. Background technique [0002] At present, the power battery packs for electric vehicles are used in series with multiple large-capacity batteries. In the process of using batteries in series, in order to achieve the purpose of protecting the battery, when a single cell in the battery pack is discharged to the cut-off voltage, the other batteries in the battery pack must stop discharging, but at this time the large battery in the battery pack must stop discharging. Part of the battery is still in a state of being able to discharge electricity, which leads to the problem that the energy of the whole battery pack cannot be fully utilized; similarly, the above-mentioned problem also exists during charging. This is the "short board effect" that exists in the battery pack during charging ...

Claims

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Application Information

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IPC IPC(8): H01M10/42H01M10/44H02J7/00
CPCH01M10/4207H01M10/425H01M10/441H01M10/446H01M2010/4271H01M10/42H01M10/44H02J7/00Y02E60/10
Inventor 毛广甫
Owner REPOWER TECH CO LTD
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